simple timer

[ARVIND GOKHALE]

i want circuit explanation for timer using transistor................










i want circuit explanation for timer using transitor 2N3904 100 microF capacitor 100megaohm resistance and 6volt supply.

 

[JimB]

At a quick guess, it wont work, the resistance is too high.

Another homework question?

JimB

 

[ARVIND GOKHALE]

At a quick guess, it wont work, the resistance is too high.

Another homework question?

JimB

visit **broken link removed** see LM555 power-reset method 1. why you say it will not work? time mat be in micro seconds.
why timing cycle starts when swiched off?
arvind

 

[Hero999]

He means that 100M is to high to use as a timing resistor, this is because the internal resistance of the capacitor is probably lower than 100M.